Adaptations
Adaptations ___________ an organism's survival.
help
Some symbiotic relationships result in both species benefitting. What is that called?
Mutualism
Preserved remains of the past
Fossil
What ship did Darwin sail on for 5 years?
HMS Beagle
Evolution occurs by means of ___________.
natural selection
What is natural selection?
Organisms better suited to the environment will likely live longer and pass on their traits
A tick drinks blood and can harm the organism it bites. What is the tick?
A parasite
Migration is a type of _____________ adaptation.
behavioral
What type of scientist was Darwin?
What is variation?
Differences among traits
A frog has a sticky tongue to help it hunt and catch bugs for food. What is the frog called?
A predator
A tick drinks blood and can harm the organism it bites. What is the organism the tick bit called?
A host
The bones on the back that protect the spinal cord.
Vertebrae
Darwin used ______________ to compare living species to those of the past.
fossils
Name 3 things that affect natural selection.
overproduction
variation
competition
A lion and leopard both hunt the same gazelle herd. What type of interaction is this an example of?
Competition
What is commensalism?
A relationship in which one organism benefits but the other does not benefit but is not harmed
A lion is hunting a gazelle for dinner. What is the gazelle?
Prey
What is artificial selection?
Controlling which organisms can breed and pass on traits (human controlled natural selection)
What is the name of Darwin's book?
On the Origin of Species
What is a niche?
The specific role an organism plays within the environment
What happens in a parasitic relationship?
One organism benefits but the other is harmed
Organisms that can mate and reproduce fertile offspring.
What is a species?
A well tested scientific concept
What is a homologous structure?